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Main Dolomite (German: Hauptdolomit, Hungarian: Fődolomit, Italian: Dolomia Principale) is a lithostratigraphic unit in the Alps of Europe. Formation was defined by K.W. Gümbel in 1857. Middle to Late Triassic sedimentary record in the Alpine realm is characterized by presence of various masses of dolomitic rock formations.
The mineral dolomite is closely related to huntite Mg 3 Ca(CO 3) 4. Because dolomite can be dissolved by slightly acidic water, areas where dolomite is an abundant rock-forming mineral are important as aquifers and contribute to karst terrain formation. [11]
Dolomite (also known as dolomite rock, dolostone or dolomitic rock) is a sedimentary carbonate rock that contains a high percentage of the mineral dolomite, CaMg(CO 3) 2. It occurs widely, often in association with limestone and evaporites , though it is less abundant than limestone and rare in Cenozoic rock beds (beds less than about 66 ...
This category contains the geologic formations with a dolomite lithology. Pages in category "Dolomite formations" The following 88 pages are in this category, out of 88 total.
The Guelph Formation is at the top of the Lockport Group. It has been called the "Vernon Transition Zone" due to thin beds and laminations between carbonates, claystones and evaporates. Its base is delimited by a stromatolite bed. Below the Guelph is the Eramosa Formation. This formation is typically a thinly laminated packstone and grainstone ...
The Beck Spring Dolomite is a geological formation in Death Valley, California, from the Tonian period of the Neoproterozoic era. It is believed to be between 750 and 800 million years old. It is known for its highly palaeontologically significant fossils of microbial life. [1] It consists almost entirely of dolomite. [2]
The Schlern Formation is unconformably overlain by the Cassian Dolomite, and overlies the Contrin Formation separated by another unconformity. Deposition of the formation took place between the Pelsonian Humid Interval and the Ladinian Humid Interval, that preceded the better known Carnian Pluvial Event (CPE).
The Chepultepec Formation is a primarily limestone and dolomite formation, the earliest formation of the Ordovician period in its area. Further north, it is equivalent to the Stonehenge Formation of the Beekmantown Group. [12] The formation was first described from Allgood, and has also been found in Tennessee and Virginia. [13]